You cant install informatica in windows 7 as its not Compatible with this OS.

You can try one alternative way which was posted earlier here but i am not 100 % sure of that solution.

Before re installing the software, first change the compatability mode on install.exe. Right mouse click on install.exe and then go to properties and then check for compatability tab and change the compatability to Windows XP Service packs 2 or Windows 2000 , where ever it is and click ok.

Thanks for letting me know this solution.... yes it works for the error mentioned above but after this error while doing the node configuration i am getting another error (when informatica is pinging the domain) error is :-

The installer cannot ping the domain.Verify that Informatica Services is running on the domain host and select Retry.

The great windows vista and 7 are really too much security consciousEven though the user logged in as Admin, for some reason it restricts doing adminstrative tasks.So everytime you run something (an application) run it as an Administrator (right click on the application, change the compatability to Administrator and save. And while running right click again and specifically run the program as Administrator)

Safe side tweaks

Right Click C drive and gave all permissions to all users (since i was doing it on my personal PC)and reduce the UAC (User Account control) settings (find it at Control Panel\System and Security\Action Center)

Actually the infasrvcs.bat has instructions for the infasrvcs.exe to set the path, but for some reason bcoz of this damn security reasons, the path doesn't get set ... so you have to do it manually later and restart the services.

Now the fix part

1. Say Ignore and finish the installation.2. Right click on My Computer, navigate to properties, Environment Variables and ensure you have these variables declared

i. JRE_HOME - ensure this has the path to your jre folder. ii. JAVA_HOME - ensure this has path to the folder where your java.exe is iii. PATH - ensure the INFA\server\bin path is also included here (if not include it at the end with by clearly mentioning it with a ; for the previously existing path followed by your INFA\server\bin path)

Now goto services.msc and restart the Informatica Services (Refresh and check they are running and not stopped)

Now ... even still if the Services are being stopped automatically, this is with the Firewall.

Disable all the firewalls or add exceptions to the firewall to allow Port 6001 TCP communicationsRestart the system Restart the Informatica Services (Refresh and check they are running and not stopped)